Water-back



(No Model.)

J. H. SIBNGE.

WATER BACK. No. 402,994. Patented May 7.1889.

' UNITED STATES PATENT OFFICE.

JAMES H. SPENCE, OF MILIVAUKEE, VISCONSIN.

WATER-BAC K.

SPECIFICATION forming partof Letters Patent No. 402,994, dated May 7, 1889.

Application filed November '7, 1888. Serial No. 290,195. (No model.)

To all whom it may concern.:

Be it known that I, JAMES I-I. SPENcE, of Milwaukee, in the county of Milwaukee and State-of Visconsin, have invented new and useful Improvements in Water-Backs; and I do hereby declare the following to be a full, clear, and exact description of said invention, reference being had to the accompanying drawings, and to the letters or iigures of reference marked thereon,which form a part of this specification.

My invention relates to that class of devices which is used for heat-ing Water in connection with water-service pipes, the device being located in or alongside the tire-box of a kitchen coal or wood burning stove.

The vnovel features of my invention will be hereinafter distinctly claimed.

In the drawings, Figure l is a perspective view of my newly-invented water-back, a central portion being broken away for convenience of illustration. Fig. 2 is a vertical section of the same device' on line X X of Fig. 1. Fig. 3 is a vertical transverse section of the same device on line Y Y of Fig. l, showing also the top and front of the stove in section in connection with a portion of the grate at the bottom of the fire-box. Fig. 4 is an inner side elevation of the left-hand water-back end head seen in Fig. l. Fig. 5 is an end view of the rear wall of the water-back, showing its construction with reference to connecting it with the end head seen in Fig. 4. Fig. 6 is a vertical central longitudinal section of a modiiied form of water-back- The arrows in Figs. 2 and G show the direction of the i'low of water in the pipes. The arrows in Fig. 3 indicate the direction of the inflow of air or draft to the re-box.

The heads A and A of the water-back are constructed of cast-iron, and are provided with chambers B and B. An inlet or induction pipe, C, passes through the head A and turns opening into the chamber B and an outletpipe, F7 is inserted in an aperture therefor in the outside of the head A', opening into the chamber B and leading therefrom, which serves as an outlet or educt-ion pipe for the water. By this method of construction there is a free circulation of the water through the pipes C, D, and E and through the chambers B and B. These pipes are wrought-iron gaspipes, and the pipes D and E are provided at their ends with right-hand and left-hand screw-threads, respectively, whereby they are adapted to turn into corresponding screwthreads in the heads A and A.

In the modified form shown in Fig. 6 a fourth pipe, F', is used as an outlet-pipe, and this pipe is, for convenience, made to pass through the head A and turn into the head A, entering one of the chambers B. (Shown in the modified form in Fig. 6.) This form of device is intended and adapted to be placed longitudinally in the tire-box of a kitchenstove opposite to and alongsideof the front of the stove, the head-pieces A and A being located at the respective ends of the tire-box, and being held in position by the pipes, and also by the rear wall, G, which is constructed of cast-iron, and is secured at its respective ends to the heads A and A, preferably by means of lugs I I, projecting therefrom, which enter sockets K K, provided therefor in the respective headsA and A. This wall G also serves to protect the front of the stove from the excessive heat of the fire in the boX, and

is preferably provided at its lower edge with a series of apertures, H H, through which air is permitted to pass from the outside into the fire-box, as indicated in Fig. 3, the top of the stove being indicated at L, the side at M,

and that the pipes are made of the ordinary and cheaply-constructed wrought-iron gaspipe. This waterback is also admirably IOO adapted for the use for which it is intended, in that the head-pieces and back form a strong and enduringl frame, While the pipes are so located as to be entirely enveloped in the heat of the {ire-box, and being Very thin the Water therein is quickly and thoroughly heated, and in case ot' the stopping of the induction o1' ed uction pipe by foreign mattei' or by ice these pipes, instead of bursting as the more substantial and thicker cast-'iron Waterbaeks do, Will split, causing no greater damage and inconvenience than the mere destruction ot' the pipe and the putting,` out of the fire by the discharge of the Water therefrom.

That I claim as new, and desire to secure by Letters Patent, is-

l. A Water-back constructed and adapted to be inserted horizontally in the {ire-box of a stove or range, consisting' of two cast-iron end pieces-one atleach end-each end piece having one or more water-chambers, in combinanation with a wrought-iron pipe or pipes conmeeting said end pieces, each coi'inecting-pipe leading into a chamber of an end piece, and an induction and an eduetion water-pipe, substantially as described.

2. A water-back consisting' of castiron headpieces A and A', provided with chambers B and B, and a rear Wall, G, in combination with a Wrought iron induction pipe, C, Wrought-iron intermediate pipes, D and E, and an eduetion pipe, F, substantially as described.

In a water-back, eastiron heads A and A and connecting wrought-iron pipes, in combination with a east-iron Wall, G, provided With dra'ftapertures II H, substantially as described.

In testimony whereof I aiix my signature in presence of two Witnesses.

JAMES Il. SPENCE.

Vitnesses:

C. T. BENEDICT, Jas. E. ER'WIN. 

